LT8580IDD-TRPBF Ver la hoja de datos (PDF) - Linear Technology

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componentes Descripción

Fabricante

LT8580IDD-TRPBF

Boost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchronization

Linear Technology 

typical Applications

550kHz SEPIC Converter Generates 24V from 15V to 30V Input

VIN

15V TO 30V

L1

• 47µH

C1

1µF

1M

VIN

SW

SHDN

FBX

CIN

2.2µF

LT8580

SYNC

VC

RT GND SS

154k

0.1µF

D1

L2

47µH

VOUT

24V

195mA (VIN = 15V)

300mA (VIN = 24V)

274k

COUT

4.7µF

12.7k

3.3nF

22pF

8580 TA06a

L1, L2: COILCRAFT 47µH MSD7342-473

D1: DIODES INC. DFLS1100

CIN: 2.2µF, 35V, 0805, X7R

COUT: 4.7µF, 35V, 1206, X7R

C1: 1µF, 100V, 0805, X7S

LT8580

Efficiency and Power Loss

(VIN = 24V)

90

1400

80

1250

70

1100

60

950

50

800

40

650

30

500

20

EFFICIENCY 350

POWER LOSS

10

200

0 50 100 150 200 250 300

LOAD CURRENT (mA)

8580 TA06b

Transient Response with 100mA to 225mA

to 100mA Output Load Step (VIN = 24V)

ISTEP

100mA/DIV

VOUT

500mV/DIV

AC-COUPLED

IL1 + IL2

500mA/DIV

100µs/DIV

8580 TA06c

For more information www.linear.com/LT8580

8580f

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